We have just installed a new Windows 2000 SBS server with ISA and Exchange. We retrieve mail from a SMTP queue using a fixed IP address. I have 2 problems to solve : Browsing works except for SSL sites like Hotmail and Yahoo. Cannot find a reason. I have HTTP and HTTPS rules setup but no luck. Email - Incoming mail works perfectly but outgoing mail gives error- Domain xxx is not reachable. Error 4003. Any ideas where to find a solution. I have searched Techlink and various places but no solution appears